Note:
The acceleration and deceleration time is shorter, if the start frequency is increased.
Too high start frequency may cause a sweep (breakover) of the motor. Therefore, the starting
frequency should not be set higher than the slip frequency.
Operating & Mounting instructions – 8 074 143.03/03 – Page 52
b035
Direction restriciton (input) VIC 00 to 02 00
Setting Function
00 Forward and reverse possible
01 Only forward possible
02 Only reverse possible
b082
Start frequency adjustment VIC 0,10...9,99 Hz 0,50 Hz
The devices start with a minimum of 0,1 Hz.
The value can be increased to a maximum of 9,99 Hz in increments of 0,01 Hz.
b083
Carrier frequency setting VIC 0,5...12,0 kHz 3,0 kHz
Setting the switching frequency of the IPM module.
Note:
A lower switching frequency will reduce the disturbances and earth currents caused by the
cables, but will increase the motor noise on the other hand.
If the carrier frequency is higher than 3 kHz, the nominal current of the inverter must be
decreased.
b086
Frequency converted value setting VC 0,1...99,9 1,0
Conversion factor for the frequency display (see parameter d007).
d007 = frequency * b086
This factor is also used to adjust the “digital actual frequency” signal, which can optionally be issued
via the analog output FM up to a max. frequency of 3,6 Hz in proportion to the current frequency.
b087
Selection of STOP key VIC 00 or 01 00
Defines the function of the STOP button on the control panel.
Setting Function
00 STOP key always active
01 STOP key only in local operation active
b088
After FRS cancelled VIC 00 or 01 00
Defines the behaviour of the inverter after reseting the idle command (FRS).
Setting Function
00 Restart at 0 Hz
01 Restart at the acutal frequency (“interception”)
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General